Patents by Inventor Michael Cuscurida

Michael Cuscurida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5723565
    Abstract: An epoxy resin composition comprises the cured reaction product of an epoxy base resin and a curing agent mixture. The curing agent mixture comprises an amino curative and a polyoxyalkylene polycarbonate. Liquid epoxy base resins cured with polyoxyalkyleneamines in the presence of polyoxyalkylene polycarbonates were harder and displayed improved tensile modulus, flexural strength and flexural modulus.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: March 3, 1998
    Assignee: Huntsman Petrochemical Corporation
    Inventors: Michael Cuscurida, Kathy Beth Sellstrom
  • Patent number: 5422042
    Abstract: This invention discloses the composition and preparation of imidazolidone modified polyetheramines. The alkyl polyetheramine is derived from 2-isopropylaminoethylamine and urea. N-isopropyl-2-imidazolidone is the intermediate product, which is alkoxylated and aminated to prepare the N-isopropyl imidazolidone polyetheramine. This invention also discloses the composition and preparation of oxazolidinone modified polyetheramines by reductive amination of polyols derived from 4-ethyl-4-hydroxymethyl-2-oxazolidone. The products of this invention have been tested in epoxy resin applications and improved properties have been demonstrated. These products may also be useful in polyurea applications.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: June 6, 1995
    Assignee: Huntsman Corporation
    Inventors: Waddill: Harold G., Wei-Yang Su, Michael Cuscurida, Terry L. Renken
  • Patent number: 5405977
    Abstract: A method for removing organic halide contaminants from alkylene carbonates is disclosed. Organic halide contaminants are removed from alkylene carbonates by contacting the contaminated alkylene carbonate with hydrotalcite.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: April 11, 1995
    Assignee: Huntsman Corporation
    Inventors: Michael Cuscurida, Edward T. Marquis
  • Patent number: 5383942
    Abstract: An amido alkanolamine composition obtained by reacting, at a temperature of 10.degree. C.-200.degree. C.:(a) a 4-alkyl-2-morpholinone represented by the formula: ##STR1## in which R represents a monovalent aliphatic radical having from 1 to 10 carbon atoms; and(b) a hydrocarbyl oxypolyoxyalkylene amine represented by the formula ##STR2## in which R' represents an alkyl, an alicyclic or an alkyl-alicyclic radical having from 12 to 30 carbon atoms or ##STR3## wherein R" represents a hydrocarbyl radical having from 4 to 30 carbon atoms, x has a value of from about 5 to 50, and R'" is an ethyl radical or a mixture of methyl and ethyl radicals.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: January 24, 1995
    Assignee: Texaco Inc.
    Inventors: Wei-Yang Su, Sheldon Herbstman, Joseph M. Russo, Robert L. Zimmerman, Michael Cuscurida
  • Patent number: 5362913
    Abstract: Highly saturated, highly aminated alkoxylated polymers may be reliably made by an improved process involving the steps of (1) polymerizing one or more unsaturated hydrocarbons to form a liquid polymer, where at least one of the unsaturated hydrocarbons is butadiene; (2) providing the liquid polymer with terminal hydroxyl groups; (3) alkoxylating the hydroxylated liquid polymer with one or more alkylene oxides having at least three carbon atoms to provide secondary terminal hydroxyl groups; (4) simultaneously aminating and hydrogenating the alkoxylated liquid polymer to produce an essentially saturated, aminated, alkoxylated liquid polymer in the presence of hydrogen and ammonia and a catalyst. The catalyst preferably contains nickel as the single greatest component, with smaller amounts of copper, chromium and molybdenum. Excesses of hydrogen and ammonia are used in the final step.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: November 8, 1994
    Assignee: Huntsman Corporation
    Inventors: John F. Knifton, Michael Cuscurida
  • Patent number: 5344996
    Abstract: The removal of basic alkaline earth metal catalysts from alcohol alkoxylate product streams using acid days wetted with water is described. The catalyst level may be reduced to 1 ppm or less in many instances. Effective acid days include, but are not limited to silica days, silica magnesia clays, alumina, montmorillonite days, mixtures thereof and the like. Contacting of the day with the alcohol alkoxylate may take place at ambient to 120.degree. C.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: September 6, 1994
    Assignee: Texaco Chemical Company
    Inventors: Edward C. Nieh, Michael Cuscurida
  • Patent number: 5336315
    Abstract: This invention is concerned with a soil stabilization process in which soil particles comprising the soil surfaces to be stabilized are contacted or treated with an aqueous solution of an alkali metal silicate, such as sodium silicate, and a carbonate reactant or gelling agent selected from the group consisting of an alkylene carbonate, such as ethylene carbonate, a polyester polycarbonate and mixtures thereof. This invention also relates to soil stabilized by admixture with (1) an aqueous solution of an alkali metal silicate and (2) the carbonate reactant.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: August 9, 1994
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, Edward T. Marquis, Wheeler C. Crawford
  • Patent number: 5288873
    Abstract: Disclosed is a novel polyetherdiamine comprising an aminated, alkoxylated 1,2'-hydroxyethyl-2-imidazolidone represented by the formula: ##STR1## where R is H or an alkyl group of from 1 to 16 carbon atoms, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are selected from the group consisting of hydrogen and lower alkyl radicals having about 1 to 4 carbon atoms, and a+b=n, wherein n is a number of from about 2 to 80, prepared by reacting urea or certain carbonates with an aminoalkoxylamine, alkoxylating the product with alkylene oxide to form a polyol which is reductively aminated to form a novel polyetherdiamine containing an imidazolidone (cyclic urea).
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: February 22, 1994
    Assignee: Texaco Chemical Company
    Inventors: Wei-Yang Su, Michael Cuscurida, Terry L. Renken
  • Patent number: 5286267
    Abstract: The present invention provides a novel class of compounds, useful as gasoline detergent additives, which is a polyether hydroxyethylaminoethyl oxalamide represented by the formula ##STR1## where R is a (C.sub.5 -C.sub.25) alkyl group and n is an integer between about 5 and about 20.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: February 15, 1994
    Assignee: Texaco Inc.
    Inventors: Wei-Yang Su, Sheldon Herbstman, Robert L. Zimmerman, Michael Cuscurida
  • Patent number: 5256828
    Abstract: Disclosed is a process for producing narrow range glycols which comprises reacting a glycol with ethylene oxide in the presence of a heterogeneous catalyst consisting essentially of an alkali metal, alkaline earth metal or alkali metal halide impregnated into an inorganic solid oxide selected from the groups consisting of small pore faujasite zeolites, pentasil zeolites, small pore ferrierite zeolites, two-dimensional mordenite zeolites, .beta.-type zeolite, basic zeolites and Group IV oxides or mixtures thereof.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: October 26, 1993
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, John F. Knifton, Pei-Shing E. Dai
  • Patent number: 5250632
    Abstract: Disclosed is a novel polyetherdiamine comprising an aminated, alkoxylated 1-2'-hydroxyethyl-2-imidazolidone represented by the formula: ##STR1## where R is H or an alkyl group of from 1 to 16 carbon atoms and a+b=n, wherein n is a number from about 2 to 80, and to its use in epoxy resin curing systems to produce compositions having improved strength and flexibility properties compared with currently available polyoxyalkylenediamine curatives of equivalent weight.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: October 5, 1993
    Assignee: Texaco Chemical Company
    Inventors: Harold G. Waddill, Wei-Yang Su, Michael Cuscurida, Terry L. Renken
  • Patent number: 5241016
    Abstract: The invention is an epoxy resin adhesive composition. The composition comprises:A. An epoxy resin component; andB. A curative component comprising:a curing amount of a polyamine curing agent and 2 to 30 phr. of an adhesion enhancer of comprising a partially hindered polyetherpolyamine.The fast curing adhesive offers high lap shear strength and relatively high peel strength.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: August 31, 1993
    Assignee: Texaco Chemical Company
    Inventors: Harold G. Waddill, Robert A. Grigsby, Jr., Michael Cuscurida, Robert L. Zimmerman
  • Patent number: 5239041
    Abstract: A process for preparing a polyurea reaction injection molded (RIM) elastomer is described. A hindered polyetherpolyamine is first obtained by reacting a polyol having two or more hydroxyl groups with an effective amount of long chain alkyl epoxide to give an at least partially hindered intermediate having hydroxyl terminations; and then aminating at least one of the hydroxyl terminations on the intermediate to primary amine groups to give an at least partially hindered polyetherpolyamine. The hindered polyetherpolyamine is then reacted with a polyisocyanate in the optional presence of a catalyst to give a polyurea RIM elastomer. The long chain alkyl group provides steric hindrance to the primary aliphatic amine group, which slows down the reactivity of the amine. The slower reactivity of the amine group is useful in RIM and RRIM compositions since it allows for longer shot or flow times, which in turn permit larger parts to be made from existing equipment.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: August 24, 1993
    Assignee: Texaco Chemical Company
    Inventors: Robert A. Grigsby, Jr., Michael Cuscurida, Robert L. Zimmerman, George P. Speranza
  • Patent number: 5238971
    Abstract: This invention is concerned with polyoxyalkylene glycols prepared by alkoxylating a hydroxyalkyl-2-imidazolidone and to a process for preparing flexible polyurethane foams by reacting an organic isocyanate with an admixture of a polyether polyol and an alkoxylated hydroxyalkyl-2-imidazolidone in the presence of a urethane catalyst and a blowing agent.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: August 24, 1993
    Assignee: Texaco Chemical Company
    Inventors: Wei-Yang Su, Michael Cuscurida
  • Patent number: 5234478
    Abstract: An amido alkanolamine composition obtained by reacting, at a temperature of 10.degree. C.-200.degree. C.:(a) a 4-alkyl-2-morpholinone represented by the formula: ##STR1## in which R represents a monovalent aliphatic radical having from 1 to 10 carbon atoms, and(b) an alkylphenoxypolyoxyalkylene amine represented by the formula: ##STR2## in which R' represents a hydrocarbyl radical having from 4 to 30 carbon atoms, x has a value from 5 to 50, and R" represents a methyl radical or a mixture of hydrogen and methyl radicals is provided.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: August 10, 1993
    Assignees: Texaco Inc., Texaco Chemical Co.
    Inventors: Wei-Yang Su, Sheldon Herbstman, Robert L. Zimmerman, Michael Cuscurida, Wheeler C. Crawford, Daniel T. Daly
  • Patent number: 5203879
    Abstract: An amido alkanolamine composition obtained by reacting, at a temperature of 10.degree. C.-200.degree. C.:(a) a 4-alkyl-2-morpholinone represented by the formula: ##STR1## in which R represents a monovalent aliphatic radical having from 1 to 10 carbon atoms, and(b) a hydrocarbyl oxypolyoxyalkylene amine represented by the formula: ##STR2## in which R' represents an alkyl, an alicyclic, or a alkylalicyclic radical having from 8 to 30 carbon atoms, x has a value from 5 to 50, and R" represents a methyl radical or a mixture of hydrogen and methyl radicals is provided.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: April 20, 1993
    Assignee: Texaco Inc.
    Inventors: Wei-Yang Su, Sheldon Herbstman, Joseph M. Russo, Robert L. Zimmerman, Michael Cuscurida
  • Patent number: 5191033
    Abstract: The invention is an epoxy resin composition. Diol initiators are reacted with alkylene oxide and 1 to 5 wt % epoxy resin. The epoxy resin is added internally, along the length of the diol chain to yield a modified polyol of molecular weight 2000 to 5000. The modified polyol is subjected to reductive amination to yield a polyamine. This polyamine is mixed with an epoxy base resin and cured to product epoxy resins demonstrating improved strength and adhesion.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: March 2, 1993
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, George P. Speranza, Kathy B. Sellstrom
  • Patent number: 5183923
    Abstract: The invention concerns a method for the preparation of polyurethane, polyester, polyamide, and polyurea diols which contain essentially all primary hydroxyl groups without capping by ethylene oxide. The method comprises coupling an alkylene oxide adduct of propylene glycol t-butyl ether or butylene glycol t-butyl ether or its aminated derivative with organic diisocyanates or dibasic acids followed by cleavage of the t-butyl group with an acid catalyst.The resulting diol is useful in many types of urethane applications including foams, elastomers and coatings.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: February 2, 1993
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, George P. Speranza
  • Patent number: 5182025
    Abstract: Disclosed is a method for removing potassium from polyol and alkoxylated alkyl phenol products and neutralizing soluble base catalysts which comprises using a partially spent ion exchange resin which no longer meets the purity requirements for the production of MTBE, ETBE or TAME, washing the catalyst, mixing it with the polyol or alkoxylated alkylphenol in an acid/base ratio of about 7/1 to 10/1, for a period of hours and removing the filtrate.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: January 26, 1993
    Assignee: Texaco Chemical Company
    Inventors: Roger G. Duranleau, Martin J. Plishka, Michael Cuscurida
  • Patent number: 5178788
    Abstract: A co-solvent system for the dissolution of cured flexible polyurethane foams, cured rigid polyurethane foams, and cured polyester resins is disclosed. The co-solvent system comprises a mixture of an alkylene carbonate and tetramethyl urea.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: January 12, 1993
    Assignee: Texaco Chemical Company
    Inventors: Edward T. Marquis, Michael Cuscurida